Customs Help identify (2) parts Please

Hello I am a little new to this Forum so hope I am doing it right.
I have taken position of a Lot of 1949 thru 1957 body parts & have been trying to identify them with some success but so far the (1,2 & 3)Pictured grill has eluded me, maybe a Mercury.
The Grill tooth end In Picture (4) looks like a 1951 or 1955 DeSoto Firelite the question I have on this is does this Grill tooth fit 1951-1955 or just 1951, there is a 51 mark inside on the front attachment bracket ???
Any help on this matter would much appreciated Thanks in advance
~~Walts37~~

 

Grill 57 Ponton I think The Tooth ????

 

grill is not mercury, looks like '57 pontiac

 

The grille is definitely '57 Pontiac. Dunno anything on the tooth.

 

The tooth is 1955 DeSoto only. It is one of the two larger teeth in the front end that year.

 

.....Walt....the grill is a 57 pontiac

 

WoW Many thanks for the quick accurate responses, I did not expect the answers this fast. I have been looking & searching the net for these answers for months. I will now not waste so much time surfing net pictures
Thanks bigbob55, WWinIL,brad2v<SCRIPT type=text/javascript> vbmenu_register("postmenu_8887806", true); </SCRIPT> & 32Dodger.
~~Walts7~~

 

That's why we're here

 

Now for the tough one I would like to identify this bumper part & I do not know if it is front or back or anything about this but guessing between 1947 to 1957 something LoL. n Please help again Guesses excepted
Thanks in advance
~~Walts37~~